apply_filters( 'postmeta_form_keys', array|null $keys , WP_Post $post )
Filters values for the meta key dropdown in the Custom Fields meta box.
Description
Returning a non-null value will effectively short-circuit and avoid a potentially expensive query against postmeta.
Parameters
- $keys
-
(array|null) Pre-defined meta keys to be used in place of a postmeta query. Default null.
- $post
-
(WP_Post) The current post object.
Source
Changelog
| Version | Description |
|---|---|
| 4.4.0 | Introduced. |